Cylinder heads • The Dodge Challenger Message Board

by **Bryan Eidins (Bryan)** » 05 Mar 2002 17:14

can anyone tell me anything about these heads from the number which is stamped on them the number is 4323345
many thanks.

by **Dave R (Roppa440)** » 05 Mar 2002 20:08

Is it stamped on or cast on? Where exactly is it? The best number to ID the head is on the intake runner under the valve cover.

by **Bryan Eidins (Bryan)** » 05 Mar 2002 22:35

the heads are not on the car,they have no valve cover on, this number is cast on the intake runner

by **Dave R (Roppa440)** » 06 Mar 2002 8:41

I couldn't see that number among my list of 'normal' big or small block heads. Help me narrow this down. Is it an iron LA engine head? Has it a cast date? Any idea at all how old it is?

by **Bryan Eidins (Bryan)** » 06 Mar 2002 18:02

yeah there iron there off a 360 i think around 1985

by **christer (Christer)** » 06 Mar 2002 18:47

V-8 Flat Tappets
YEAR: 1985-89
C.I.D:318
LITRE: 5.2
BORE: 3.91

I got these facts from:

http://www.butlers-a1.com/dodge.htm

(All i did was to search for '4323345' on Alta Vista)

by **Dave R (Roppa440)** » 06 Mar 2002 19:05

Clever clogs!

That is why I don't have a listing for them in my stuff. They are too new!

by **Jeff Brown (Jeff)** » 01 Sep 2003 15:34

I need some new stainless hold bown bolts for my new big block MP alloy valve covers, anyone know what size I need?

by **Dave-R (Roppa440)** » 01 Sep 2003 15:55

Quarter inch coarse thread. Inch long if you use a washer as well.

by **Jeff Brown (Jeff)** » 01 Sep 2003 16:00

Wow! that sounds positive!
Thanks Dave, I am trying to get to Avon park this weekend....

by **Dave-R (Roppa440)** » 01 Sep 2003 17:59

I will wait until you have ordered them and then I will check that I was correct.

by **Jack T (Jackt)** » 01 Sep 2003 19:21

1/4-20 National Coarse thread 3/4" long is correct for the stock steel valve covers. The additional thickness of the alloy covers would make that a bit short for them, so Dave might be correct on the 1" length.

by **Dave-R (Roppa440)** » 01 Sep 2003 20:25

I am sure I am Jack. I forgot to check of course.

Those cast rockers along with a thick rubber gasket and a washer take up a half inch or more themselves. I used stock length at first and stripped two threads because they did not go in far enough. Hex drive heads are best for these.

by **Jack T (Jackt)** » 02 Sep 2003 0:14

I meant no offense - I have no experience as yet with the cast aluminum covers. However, the new ones for the R/T SE are in the garage waiting for their turn to be bolted on, so I will be getting that first-hand once my problem with the wrong sized bushing is behind me.

by **Dave-R (Roppa440)** » 02 Sep 2003 9:37

Non taken Jack! I was in too much of a hurry to explain correctly.

You don't have to be PC around me you know!

by **Jeff Brown (Jeff)** » 02 Sep 2003 13:51

Ordered them today, should have them tomorrow.
I am still waiting on the pushrods though.

by **Dave-R (Roppa440)** » 02 Sep 2003 21:28

Here is what you need!

And here are the tools to get them in! Note socket welded to allen wrench.